The phrase "a sort of portfolio" is correct and usable in written English.
It can be used when describing something that resembles or functions like a portfolio, but may not be a traditional one.
Example: "She presented a sort of portfolio showcasing her various art projects and designs."
Alternatives: "a type of portfolio" or "a kind of portfolio".
"But there are only so many interviews you can sit down in and try to put that into words, before you just have to go off and do a few things, and have that as a sort of portfolio of answers — to myself, and to everyone else.
I tried it and it grabbed all of my photos and made a sort of portfolio of me by mashing up all my Facebook jazz.
On paper, the retirees are a sort of portfolio of liabilities, but also the assets to pay benefits.
Most of these contracts are about struggling to get some regular work and regular pay while being prevented from putting together any sort of "portfolio" of work with other employers.
As counselor, a sort of minister without portfolio, he is a combination ideas man, troubleshooter, adviser, hands-on negotiator and executive secretary for Mr. Baker.
Carter served as a sort of diplomat without portfolio in various conflicts in a number of countries including Nicaragua (where he successfully promoted the return of the Miskito Indians to their homeland), Panama (where he observed and reported illegal voting procedures), and Ethiopia (where he attempted to mediate a settlement with the Eritrean People's Liberation Force).
As a sort of minister without portfolio, Zelikow was a one-person think tank for Rice, churning out lengthy and sometimes blunt memos calling for confronting the deteriorating situation in Iraq, overhauling the administration's detainee policies and using the North Korean nuclear crisis to build a new security structure in northeast Asia.
Artists get a sort of Behance online portfolio for their work, a new funnel for customer acquisition, and calendaring tools plus other client-facing service offerings via Tattoo Hero hosted storefronts.
He's traveled widely internationally as a sort of diplomat-without-portfolio and brokered deals with Saddam Hussein to free American captives.
